Car-truck bolster.



Patented Nov. Il, |902.

No. ms.

J. C. WANDS.

CAR TRUCK BOLSTER.

(Appncmon med Aug. 11, 1902.)

(No Model.)

UINTTED STATES PATENT OEEICE.

JOHN C. IVANDS, OF ST. LOUIS, MISSOURI.

CAR-TRUCK BOLSTER.

SPECIFICATION forming part of Letters Patent 1\T0. 713,868, dated November 1 1, 1902.

Application filed August 1l, 1902. Serial No. 119,280. (No model.)

T0 all", whom, t'z'; 77u03/ concern.-

Be it known that I, JOHN C. W'ANDS, a citi- Zen of the United States, residing at 5642 Von Versen avenue, St. Louis, Missouri, have invented a certain new and useful Improvement in Car-Truck Bolsters, (Gase B,) of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specication, in which- Figure l is a top plan View, partly in horizontal section, of myimproved car-truck bolster. Fig. 2 is a side elevational view, partly in vertical section, of the same. Fig. 3 is a vertical crosssectional view on line 3 3 of Fig. 1. Fig. 4 is a fragmentary view, in side elevation, of Jthe compression member; and Fig. 5 is a similar view of a modified form of compression member.

This invention relates to a new and useful improvement in holsters designed particularly for use in car-trucks, although my invention is equally applicable to holsters for supporting the end of the car, commonly known as body-bolsters or transoms, and also the principles of' my invention are applicable to other types of truss-beams generally.

Hy invention consists in the construction, arrangement, and combination of the several parts, all as will hereinafter be described and afterward pointed out in the claims.

In the drawings, l indicates the compression member, which preferably consists of commercially rolled channel appropriately cambered. This channel form of compression member is selected for reasons of economy and because the same may be readily obtained in the market. It is obvious, however, that other forms ot compression members-such as I-beams, angles, Z-bars, dac-could be used, and, further, that instead of being in the form of commercially-rolled sections said compression member could be cast or otherwise formed.

2 indicates the tension member, preferably in the form of a hat plate whose ends are grooved, perforated, or provided with transverse corrugations (the latter only being shown in the drawings) for permanent attachment in castings 3. The ends of thev compression member are also provided with openings 4 in their tianges or notches 5, as shown in Fig. 5, for permanent attachment in said castings 3. These end castings or headblocks,7 as they might be termed, are cast upon the ends of the ltension and compression members. This can readily be done byintroducing the ends of said members a proper distance into the mold and then pouring the molten metal, which enters the openings or grooves to firmly embed and permanently connectI the tension and compression members therewith, so that said members practically become an integral part of the casting, thus dispensing with separate fastening devices. These end castings or head-blocks are arranged at each end of the bolster, and, as shown in Fig. 2, the lower faces of said castings are provided with circular bosses 6, forming spring-seats. The side faces of the castings are provided with vertical. ribs 7, forming column-guides. The upper face of each casting beyond the compression member is preferably flush with the upper face of said compression member, and thus the end of the compression member is countersunk in the casting, which casting is in this way best adapted to act as a thrust-block in taking up the end thrusts of the compression member.

8 indicates the strut, which is in the form of a casting and made hollow to receive the king-pin. The iianges of the compression member opposite the strut are provided with openings 9 or recesses lO (see Figs. 4 and 5) for the purpose of permitting the metal forming the strut to flow therethrough and provide a permanent attachment between the strut and the compression member. The lower end of the strut is preferably not permanently connected to the tension member, but is cast thereagainst, said tension member forming vone ofthe walls of the mold. The center bearing Il is an integral part of the strut, being y IOO of the several parts of my device can be made and substituted for those herein shown and described Without in the least departing from the nature and principle of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A car-truck bolster comprising a commercially-rolled compression member, headblocks cast on the ends thereof, a tension member, and a strut; substantially as described.

2. A car-truck bolster comprising commercially-rolled compression and tension members, head-blocks cast upon the ends thereof, and a strut; substantially as described.

3. A car-truck bolster comprising a commercially-rolled compression member, headblocks cast on, and interlocked with, the ends thereof, a tension member, and a strut; substantially as described.

4. A cartruck bolster comprising a at plate tension member, head-blocks cast on, and interlocked with, the ends thereof, a compression member, and a strut; substantially as described.

5. A car-truck bolster comprising a channel-shaped compression member, a dat plate tension member, head-blocks cast on, and interlocked With, the ends of said compression and tension members, and a strut; substantially as described. l

v6. A car-truck bolster comprising a tension member, a compression member, a strut, and head-blocks cast on and interlocked with the ends of said compression and tension members, said head-blocks forming spring-seats and having projections forming columnguides; substantially as described.

7. A car-truck bolster comprising a channel-shaped member formed with openings or recesses near its ends, and head-blocks cast on the ends of said channel, the metal of said head-blocks entering the openin gs or recesses; substantially as described.

8. A car-truck bolster comprising a comv pression member, a strut, a fiat plate tension member having its ends grooved or corrugated, and head-blocks cast on said grooved or corrugated ends; substantially as described.

9. In a car-truck bolster, the combination with a compression member formed With openings, and a strut cast thereon, the metal of the strut filling said openings; substantially as described.

l0. In a car-truck bolster, the combination With a compression member, a tension member, a strut cast upon the compression member and engaging the tension member, said strut being interlocked with the compression member, and a center bearing integral with the strut; substantially as described.

In testimony whereof I hereunto afx my signature, in the presence of two Witnesses, this 9th day of August, 1902.

`IOHN C. IVANDS. 

